Wheel



L." H. PERLMAN.

WHEEL.

APPLICAUON FlLED AUG-l6, 1917- 1,374,107, Patented Apr. 5, 1921.

g Jwuwr 4'01; 010M Whine o m W LOUIS H. PERLMAN, OF NEW Y0RK,'1\T. Y.

WHEEL.

T 0 all whom it may concern:

Be it known that 1, Louis H. PERLMAN, a citizen of the United States, residing at New York, in the county of New York and State of- New York, have invented certain new and useful Improvements in \Vheels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in'the art to which it *appertains to make and use the same.

This invention relates to improvements in wheels, and more particularly to such as include demountable rims of the type employing wedges for tensioning and locking such rims in place.

The object in view is to improve the demountable rim feature of the wheel structure by rendering one of the tire-retaining flanges readily removable without interfering with the method of mounting.

With this and further objects in view as will in part hereinafter become apparent and in part be stated, the invention comprises certain novel constructions, combination and arrangements of parts as subsequently specified and claimed.

In the accompanying drawing,

Figure 1 is a transverse section through the peripheral portion of a wheel embodying the features of the present invention.

Fig. 2 is a view in side elevation of a iragment of a wheel showing the parts in Fig. 3 is a View similar to Fig. 1' of a slightly modified embodiment.

Fig. 4 is a sectional View taken along the line of the channel and locking rib of the parts as seen in Fig. 1, the demountable rim only being show Fig. 5 is a fra entary cross section taken %n the plane indicated by line 55 of Referring to the drawing by numerals, 1 indicates the usual felly of a wheel on which is rigidly mounted the fixed rim or felly band 2 having the customary supporting stop flange 3. Demountable rim 4 has its inner edge sustained by the flange 3, while its outer edge is sustained by a series of spaced wedges only one of which is illustrated in the accompanying drawing, and it will be understood that the remaining wedges are identical in form and function with that shown., One of said wedges is seen at 5 mounted on bolt 6, which bolt is Specification of Letters Patent.

member 5 itself may be of the customary Patented Apr. 5, 1921. Application filed August 16, 1917. Serial No 186,530.

form, but is arranged differently from the usual wedge in that the wedging'projection extends into a recess 7 formed in the peripheral portion of thewheel instead of riding over the extreme outer surface of the wheel body. The recess 7 may be provided for in various ways, but I preferably arrange a depression in the fixed rim or felly band 2 with acorresponding depressionin the material of the felly 1 for accomodating the depressed material of the band 2.

Y The rim 4 is shown to be of the straightside type, but obviously may be of any of the known types. The rim 4 is adapt-ed to receive the well known hard bead tire, and for this purpose I arrange one of the tireretaining flanges .of the rim removable;

The removable flange is indicated at 8, and is of the same shape as the fixed flange for ,its anchorage to the base of rim 4. For the purpose of anchoring the removable flange 8, the base of the rim 4 is formed with an annular anchoring groove 9 spaced from the outeredge of the base of the rim, and the base of the rim is formed with an offset or annular depression 10 outside ofthegroove.

9, the depression being equal substantially to the thickness of the material of flange 8 and the material of the base 4 beyond the offset 10' curves outwardly at 11 sov as to form a further means of anchorage for the" flange 8. The flange 8 is formed with an annular seat 12 of a size and contour conforming to the size and contour of the depression or offset 10, and the seat 12 terminates in an inwardly-extending annular bead 13, shaped and disposedv to snugly fit within the groove 9. The groove 9 maybe rolled or otherwise appropriately formed,

and when it is desired to provide the groove with sharp angles the section will be rolled while hot, but whatever method of construca tion may be employed the result will be the product-ion of an. inwardly-extending annular head at the inner face of the'base of rim 4. This annular bead is of a width suffi cient to take up the space between the main portion of Tim 4 and the main portion of rim 2, so that said bead, in operation, lies substantially in contact and some times actually in contact with the outer surface of the band or rim 2. The advantage of this bead formation will be obvious to those familiar with the-art in. providing means for causing the rim 4 to conform with some degree of precision with the contour of band 2 and not to become materially distorted v therefrom even under the stressof' the locking wedges.- It will thus be seen that the depressions 7 are useful in enabling 'the obtaming of the results'stated in the use of the bead formed by the provision of the groove 9. In operation, as seen in Fig. 1, the Wedge 5 contacts with the outer curve 11 and usually with the outer curved portion "cerned and so far as t e manipulation of the Wedges 5 is concerned.

The flange 8 is not a continuous ring, but is cross-cut at one point, as indicated at 14, and each end of the rim is formed with :1 lug or projection 15 disposed to extend through an aperture 16 formed-through the base of the rim 4 at the bottom of the groove or'channel 9. When a tire is to be 1 applied to the rim, an implement, such as a.

screw-driver, is forced between the flange 8 and the curved portion 11 of rim 4, the instrument being introduced preferably near one of the endsof thering 8, and by a prying operation the end is lifted until the lug or projection 15 leaves the aperture 16 and the end of the flange ring 8 is thus sprung out of its seat. his is followed by a springing of the rest of the ring out of the seat for a distance approximating one-half the circumference of the ring when the ring will fall out of its seat without further effort and is then entirely removed. The'extreme edge portion of the base of rim 4 beyond the curve 11 is of the same diameter as and in axial alinementwith the outer surface'of said base so that a tire may be readily slipped across the said edge and onto said base. Thereafter the flange 8 is replaced by a converse operation to that described in removing it.

In Fig. 3, I have illustrated a very slight modification from that above described, all parts being identical and the same reference numerals and same description applying, except the formation of, the bead .13 and its corresponding channel or groove 9'. The channel or groove 9' in the structure seen in Fig. 3 is cold-rolled, and,'therefore, has its corners rounded to prevent breaking or cutting of the metal in the process of rolling, and the bead 13' is shaped accordingly.

TVhat is claimed is 1. In a wheel, the combination of a felly,

-a fixed rim thereon having a stop flange at one edge, a demountable rim adapted to be sustained with one of its edges in engagement with the stop flange, the demountable rim having at that edge remote from said stop flange a flange-ring seat producing a radially inward projection, and wedge locking means for sustaining the edge portion and a relatively wide depression communicating with the groove, the edge of the base next to the depression being of the same diameter as and in axial alinement with the main portion of the base of the rim, the formation of the groove providing an annular projection or bead at the inner face of the base, and a flange ring proportioned to conform to the contour of and be seated within the said channel and depression, the

depression being of a depth for accommodating the seat of the rim with the outer 

